Add controls snapshots

Signed-off-by: Sacha Al Himdani <sacha@getprobo.com>

pkg/coredata/migrations/20250826T174137Z.sql

@@ -0,0 +1,15 @@
+CREATE TABLE controls_snapshots (
+    control_id TEXT NOT NULL REFERENCES controls(id) ON DELETE CASCADE ON UPDATE CASCADE,
+    snapshot_id TEXT NOT NULL REFERENCES snapshots(id) ON DELETE CASCADE ON UPDATE CASCADE,
+    tenant_id TEXT NOT NULL,
+    created_at TIMESTAMP WITH TIME ZONE NOT NULL,
+    PRIMARY KEY (control_id, snapshot_id)
+);
+
+ALTER TABLE controls_audits DROP CONSTRAINT controls_audits_control_id_fkey;
+ALTER TABLE controls_audits ADD CONSTRAINT controls_audits_control_id_fkey
+    FOREIGN KEY (control_id) REFERENCES controls(id) ON DELETE CASCADE ON UPDATE CASCADE;
+
+ALTER TABLE controls_audits DROP CONSTRAINT controls_audits_audit_id_fkey;
+ALTER TABLE controls_audits ADD CONSTRAINT controls_audits_audit_id_fkey
+    FOREIGN KEY (audit_id) REFERENCES audits(id) ON DELETE CASCADE ON UPDATE CASCADE;